<template>
  <div class="icons">
    <swiper :options="swiperOption">
      <swiper-slide v-for="(page, index) of pages" :key="index">
        <div class="icon" v-for="item of page" :key="item.id">
          <div class="icon-img">
            <img :src="item.imgUrl" class="icon-img-content">
          </div>
          <p class="icon-desc">{{item.desc}}</p>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script type="text/ecmascript-6">
export default {
  name: 'HomeIcons',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOption: {
        autoplay: false
      }
    }
  },
  computed: {
    pages () {
      const pages = []
      this.list.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" rel="stylesheet/stylus" scoped>
  @import '~styles/varibles.styl'
  @import '~styles/mixins.styl'
  .icons >>> .swiper-container
     height:0
     padding-bottom: 50%
     touch-action: none
  .icons
    margin-top: .1rem
    touch-action: none
    .icon
       overflow: hidden
       position: relative
       float: left
       width: 25%
       height:0
       padding-bottom: 25%
     .icon-img
        position :absolute
        top:0
        left:0
        right:0
        bottom: .44rem
        box-sizing: border-box
        padding: .1rem
      .icon-img-content
         display: block
         margin:0 auto
         height:100%
     .icon-desc
        position: absolute
        left:0
        right:0
        bottom:0
        height: .44rem
        line-height: .44rem
        color:$darkTextColor
        text-align:center
        ellipsis()
</style>
